Initial source commit

minorGems/graphics/converters/JPEGImageConverter.h

@@ -0,0 +1,95 @@
+/*
+ * Modification History
+ *
+ * 2001-April-27   Jason Rohrer
+ * Created.   
+ */
+ 
+ 
+#ifndef JPEG_IMAGE_CONVERTER_INCLUDED
+#define JPEG_IMAGE_CONVERTER_INCLUDED 
+
+
+#include "minorGems/graphics/ImageConverter.h"
+
+
+/**
+ * JPEG implementation of the image conversion interface.
+ *
+ * Implementations are platform dependent.
+ *
+ * @author Jason Rohrer
+ */
+class JPEGImageConverter : public ImageConverter {
+	
+	public:
+
+		/**
+		 * Constructs a JPEGImageConverter.
+		 *
+		 * @param inQuality a quality value in [0,100] for compression.
+		 *   100 specifies highest quality.
+		 */
+		JPEGImageConverter( int inQuality );
+
+		
+		/**
+		 * Sets the compression quality.
+		 *
+		 * @param inQuality a quality value in [0,100].  100
+		 *   specifies highest quality.
+		 */
+		void setQuality( int inQuality );
+		
+
+		/**
+		 * Gets the compression quality.
+		 *
+		 * @return a quality value in [0,100].  100
+		 *   indicates highest quality.
+		 */
+		int getQuality();
+
+		
+		// implement the ImageConverter interface
+		virtual void formatImage( Image *inImage, 
+			OutputStream *inStream );
+			
+		virtual Image *deformatImage( InputStream *inStream );		
+
+		
+	private:
+		int mQuality;
+	};
+
+
+
+inline JPEGImageConverter::JPEGImageConverter( int inQuality )
+	: mQuality( inQuality ) {
+
+	if( mQuality > 100 || mQuality < 0 ) {
+		printf( "JPEG quality must be in [0,100]\n" );
+		mQuality = 50;
+		}
+	}
+
+
+
+inline void JPEGImageConverter::setQuality( int inQuality ) {
+	mQuality = inQuality;
+
+	if( mQuality > 100 || mQuality < 0 ) {
+		printf( "JPEG quality must be in [0,100]\n" );
+		mQuality = 50;
+		}
+	}
+		
+
+
+inline int JPEGImageConverter::getQuality() {
+	return mQuality;
+	}
+
+
+
+#endif